/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 86183
 * Date: 2023-01-07
 * Time: 15:03
 */
class MyThread extends Thread{
    public void run(){
        while (true) {
            System.out.println("Hello world!");
        }
    }
}
public class Test1 {
    public static void main(String[] args) {
        Thread t = new MyThread();
        t.start();
        while (true){
            System.out.println("HeHe !");
        }
    }
}
